LSX Tall Deck Build

[RBOD]

Those are some serious ass dishes. What's the CR going to be?

 

[FSTR-THANU]

8.6:1 is the current calculation.

Tom

 

[chunkybs]

i want LSx in my grand prix lol.

 

[FSTR-THANU]

The block is machined and good to go! Here are some shots of the hone:

Tom

 

[cjmatt]

its cool that the lsx block lets you pull the lifters without having to remove the heads

 

[COOKIE MONSTER]

Nice...

 

[FSTR-THANU]

Here are some really cool lifter guides Billy Briggs made to replace the plastic ones:

Tom

 

[fogged10]

cool build!


but i bet a mod moves this within 24hrs? lol

 

[BB71Mopar]

Damn. I'm jealous.

 

[COOKIE MONSTER]

Would you like a turbo with that?

 

[Hugger Z]

Mmmm, my car needs an Orange engine block like that. :lol:

 

[chacho44]

I likey

 

[2000Durahoe]

What's the purpose of the holes in the surface of the pistons?

 

[camaromann]

What's the purpose of the holes in the surface of the pistons?

It is to increase piston ring seal when a motor is being subject to power adders.

 

[Sean]

What's the purpose of the holes in the surface of the pistons?

Gas porting. It applys cylinder pressure to the back of the ring in a effort to force the ring outward to increase cylinder seal. Takes a dedicated ring package to make it work correctly.

 

[RBOD]

The block is machined and good to go! Here are some shots of the hone:

Tom

How hard on the tooling was that block? I know when Millen's block was bored it was chewing up everything because it was amazingly hard.

 

[FSTR-THANU]

Some machine work videos from Champion Machine:


Machine for Jesel Belt Drive

http://www.facebook.com/video/video.php?v=1227814623200

CMM Bore Location

http://www.facebook.com/video/video.php?v=1227834903707

Bore Machining

http://www.facebook.com/video/video.php?v=1227828383544


You have to have a facebook account to view. I will try to move them to youtube later.


Tom

 

[2000Durahoe]

It is to increase piston ring seal when a motor is being subject to power adders.

Gas porting. It applys cylinder pressure to the back of the ring in a effort to force the ring outward to increase cylinder seal. Takes a dedicated ring package to make it work correctly.

That's pretty wild but amazingly simple at the same time. +1 to both of you!

 

[FSTR-THANU]

So progress can continue I decided to go with a 4.250 stroke Lunati Pro Series crank. I have 2.100 pins but only 6 counter weights. The crank has been micro polished as well. I have had great success with the 4in stroke stuff with over 9000rpm so I am confident I should fine. I fully understand the bending deflection across the center causes measurable losses, so many builders are using eight-counterweight cranks. From an overall engine design perspective, the LSX relocation of the thrust bearing from the rear main to the center main definitely helps reduce center-main bending deflection and will allow us to get away with alot more than a standard SBC. When the billet center balance with 8 counter weights Callies is done I will inspect the Lunati and swap if necessary. This decision has also sacrificed some displacement so I will start with a 454ci now.

Rods are next! Should get them next week. I will share the details soon.

Thanks,

Tom

 

[COOKIE MONSTER]

Rods? HRC? Oliver? Compstar HD-I beams?